Preparation of potassium sulfate from K-feldspar by hydrothermal alkaline method: reaction principle and process evaluation
MA Hongwen, SU Shuangqing, YANG Jing, CAI Biya, LIU Meitang, YAO Wengui, PENG Hui
CIESC Journal . 2014, (6): 2363 -2371 .  DOI: 10.3969/j.issn.0438-1157.2014.06.056